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We are currently seeking a Senior Data Migration Engineer to join our team in Bangalore, Karnātaka (IN-KA), India (IN).
o The Senior Data Migration Engineer serves as a hands-on technical contributor and delivery anchor, responsible for designing and implementing Python-based extract/load pipelines, dbt-based transformations, and Airflow-based orchestration for a large-scale migration from Informatica PowerCenter to a modern data stack. o This role requires deep expertise in converting complex Informatica workflows into Python, dbt, and Airflow, and the ability to deliver production-quality, functionally equivalent output at enterprise scale. Key Responsibilities• Assess complex Informatica workflows including sessions, mappings, and parameterizations and translate them into equivalent Python EL scripts and dbt transformation models.
Develop and maintain Python EL pipelines to land high-volume data, including billion-row tables, into the target warehouse using SQLAlchemy, cx_Oracle, pyodbc, and bulk export tools such as Oracle Data Pump and SQL Server BCP.
Design and develop dbt transformation models based on Informatica mapping logic, incorporating dbt best practices including model layering, macros, incremental strategies, and snapshot patterns.
Develop dbt-native tests as well as custom Python unit tests to validate transformation correctness and data quality.
Develop Airflow DAGs to orchestrate Python EL and dbt scripts end-to-end, producing output that is functionally equivalent to the source Informatica workflows.
Contribute to GitLab CI/CD pipeline for dbt and Airflow code, including lint gates, automated testing, and deployment to shared NAS.
Perform peer code reviews and provide constructive technical feedback to fellow engineers.
Troubleshoot performance issues and data discrepancies during SIT and UAT, including row-count reconciliation between source Oracle/SQL Server systems and the target warehouse.
Contribute to technical documentation, runbooks, and handover materials.
Required Skills & Experience
5+ years of Informatica PowerCenter experience - mappings, sessions, workflows, and parameterization
3+ years of hands-on dbt Core experience - model layering, macros, tests, incremental materializations
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3+ years of Airflow experience - DAG authoring, task dependencies, and incorporation with scheduling tool
5+ years of Python experience, including production use of parallelism and batch data processing
5+ years of SQL experience - complex joins, window functions, aggregations across large datasets
Experience with Oracle Data Pump (expdp/impdp) or SQL Server BCP / BULK INSERT for high-volume data movement
Preferred
Experience with SQLAlchemy, cx_Oracle, or pyodbc for Python-based database connectivity
Experience mentoring junior and mid-level engineers in offshore delivery models
About NTT DATA
NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.
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